<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>timer button</title>
  <link rel="stylesheet" href="layout.css" >
</head>
<body>
  <input type="button">
  <script src="//apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
  <script src="main.js"></script>
</body>
</html>
